F12 KDE - slow response when clicking task bar items

[Steven P. Ulrick]

Hello Everyone,

> On November 26, 2009, Craig White wrote:
> > Since I upgraded to F12, I have noticed that it is very slow to respond
> > to clicks in the task bar - i.e., a long delay if I click the 'fedora'
> > start button or any of the applications in the 'Task Switcher' widget.
> > 
> > Discernibly slower than F11
> > 
> > FWIW, I am booting with nomodesetting option and using 'nv' driver with
> > an xorg.conf setting (the same as I was using in F11) because I simply
> > cannot get 1280x1024 with the nouveau driver, even with 'nomodesetting'
> > boot option.
> > 
> > Anyone else notice this? Is there something I am doing wrong?
> 
> I've noticed exactly the same behaviour, and its driving me nuts... clicking 
> on the "Start" Menu takes ~10-15s to pop up, but starting apps on my panel by 
> clicking on the icon works nice and fast.  KRunner also takes ~10-15s to 
> appear if I hit ALT-F2, and more often than not bringing up the desktop 
> context menu is fast but it then stalls when trying to  disappear again.

First off, this bug specifically refers to the use of the binary NVidia driver, 
which I know at least one of the posters on this thread says that they are not 
using.  But, the manifestations described are just like what you all are 
describing, and they are exactly what I WAS experiencing with Fedora 12:
https://bugzilla.redhat.com/show_bug.cgi?id=533620

Also, check this out:
https://fedoraproject.org/wiki/Common_F12_bugs#Problems_when_using_KDE_with_the_proprietary_NVIDIA_graphics_driver.2C_some_Radeon_dual-
head_configurations.2C_or_nouveau_with_KMS_disabled

In addition, I needed to follow the steps that appear under the "Fedora 12 
Special Notes" section on the below linked page:
http://www.mjmwired.net/resources/mjm-fedora-nvidia.html

Applying the information contained in the above links fixed my problem, which at 
least LOOKS exactly like what you are describing.

If you have any questions about the "various" test builds of xorg that are 
involved in making all of this possible, I will get back to you after I get home 
from work today...

Steven P. Ulrick

P.S.: For some reason I have been having issues with KDE's KMail and the 
breaking of links.  So at least one of the above quoted links might be broken...